WASET
    Sim Hui Tee and  Rodziah Atan and  Abdul Azim Abd Ghani,  Determining the Minimum Threshold for the Functional Relatedness of Inner-Outer Class.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2010, vol. 38(2). 316 - 319
    [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/4452.